Bug#595403: POSIX::sigaction breakage on armel

[Niko Tyni]

On Fri, Sep 03, 2010 at 09:01:27PM +0300, Niko Tyni wrote:

> > As Sys::SigAction is a pure perl module, I agree the bug is most probably
> > in POSIX::sigaction in the perl package.

Testcase:

#!perl
use POSIX q/sigaction/;

my $a1 = POSIX::SigAction->new( sub {} );
my $a2 = POSIX::SigAction->new();

sigaction(ALRM, $a1, $a2);
sigaction(ALRM, $a1, $a2);
sigaction(ALRM, $a2);

kill ALRM => $$;
__END__

This results in stack corruption on agricola (haven't tried on abel):

Program terminated with signal 11, Segmentation fault.
#0  0x41676952 in ?? ()
(gdb) bt
#0  0x41676952 in ?? ()
#1  0x41676952 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

-- 
Niko Tyni   ntyni at debian.org